Manifold



H. W. ALLEN.

MANIFOLD.

APPLICATION men JULY 24. 1919.

Patented Nov. 2 2, 1921.

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INVENTOR.

WIN/$520M f Q Q Tl um ATTORNEYS UNITED STATES PATENT OFFICE.

HERBERT WILLIAM ALLEN, OF SUGAR PINE, CALIFORNIA.

MANIFOLD.

Application filed July 24,

To all whom it may concern Be it known that I, Hnnnnn'r W. ALLEN, a citizen of the United States, and a resident of Sugar Pine, in the county of Madera and State of California, have invented certain new and useful Improvements in Manifolds, of which the following is a specification.

My invention is an improvement in manifolds, and has for its object to provide a device of the character specified especially adapted for use with the carbureter forming the subject matter of my co-pending application Serial No. 271,677, filed January 17, 1919, for heating the vaporizing tube in the aforementioned construction by means of the exhaust gases, and for heating the mixture before it is delivered to the engine.

In the drawings:

Figure 1 is a rear view of the improved manifold;

Fig. 2 is an 'end view, looking from the right of Fig. 1;

Fig. 3 is a section on the line 33 of Fig. 1;

Fig. 4 is a vertical section in the plane of the vaporizing tube.

The present embodiment of the invention comprises a suitable casing 1, which is adapted to be arranged between the carbureter and the cylinders of the engine in a manner to be presently described, and the casing has a chamber or passage 2 extending longitudinally thereof and having nippics 3 for connection with the exhaust openings of the cylinders.

The casing has also a chamber or passage at-5, composed of a. main or body portionft, and a portion 5 connected at its ends to the portion et. The portion 4: has outlet ports or nipples 6, and an inlet passage 7 connects with the portion 5 at the center, the passage extending downwardly in rear of the casing 1.

This passage is adapted to be connected with the discharge outlet of the carbureter forming the subject matter of my above application, the said outlet being indicated at 8. The mixture, properly combined and mixed by the said carbureter and in condition for use in the engine cylinders, passes through the passage 7, the chamber 45 Specification of Letters Patent.

1919. Serial No. 312,955.

to the cylinders, and it is thoroughly heated by the heat from the exhaust gases in the chamber 2.

The casing 1 has at one end a depending portion orextension 9, which has near its lower end a lateral branch 10 adapted for connection with the exhaust pipe or mufiler. The exhaust gases pass from the cylinders through the chamber 2 and by Way of the extension 9 and the lateral branch 10 to the muffler or to the atmosphere.

The vaporizing tube 11 of the carbureter forming the subject matter of the above Patented Nov. 22, 1921. i

mentioned application is arranged within 7 the extension 9, and the ends of the arms of the said tube, which is substantially U- shaped, pass through the bottom of the extension, the said bottom being formed by a disk 12 having openings through which the arms pass.

The said arms are expanded into the open ings of the disk and the disk is loose in the extension. A washer 13 fits loosely in the extension above the disk, closing the'space between the disk and the extension wall. The tube 11 is heated by the exhaust gases, and the fuel passing therethrough will be thoroughly vaporized. The manifold not only heats the fuel before it enters the carbureter, but also heats the mixture as it passes from the carburetor.

I claim:

A manifold comprising a casing adapted to be arranged between a carburetor and the engine to be supplied with fuel, said casing including a chamber provided with inlets for connection'with the exhaust ports of the engine and also a chamber provided with an inlet for connection .with said carbureter, and outlets for connection with the cylinders of the engine, said casing further provided with a tubular extension communieating at one end with the first named chamber and having a hollow lateral outlet for discharging exhaust gases, and an inverted substantially U shaped vaporizing tube loosely mounted at its lower ends by a disk within the first named extension adapted for connection with the carbureter, and a washer fitting closely within the extension and supported on said disk.

HERBERT l/VILLIAM ALLEN. 

